Mongler's right again. Concerning the springs wanting to move the pump backward from the pinned position.
Now that that's said my question for Mongler is: He said all the marks line up, how will redoing it change that?
it wont, but i dont think its correct, you can be a tooth off and the flywheel mark actually be darn near perfect to our eyes especially if the crank sprocket has a wobble to it!
the assumption and evidence points to the IP being a tooth off, that would defiantly throw off the timing off the graph exactly like OP says. in my experience, this happens every time that the belt rotates things when trying to get it to fit.
If you go by the book, its very difficult to keep things perfectly lined up, you put the belt on and things rotate and the cam ends out slightly out of time, this once corrected by putting the belt on and tightening the tensioner actually forces the IP to retard back a bit, not sure exactly why but every time i did a belt the wrong way (according to the way i do it now) the timing would be off the graph enough though things align up enough to lock out the cam and the IP but the crank is slightly off at the flywheel.
Once i started taking up the slack with the tensioner by not putting the arm in its place and rotating the tensioner 180* the wrong way for MAX belt play, then putting the arm in its home with a flat head after i got the belt on and the timing marks correct did this stop. i never had to make the IP advanced.
the only way for OP to have a perfect timing belt install AND the timing graph this far off AND for it to run and start with it forced a tooth off, is for the pump head to be far worn down that the relationship between the head and the cam to be far off or the crank pulley to be worn down. unless he got the hans scam parts!!!!!!
AHU pumps dont have a center bolt, they have 3 bolts holding the pump sprocket on. as far as i know, you cant have the sprocket installed and it be off right???? im not 100% on this but that was my understanding.
Maybe there is an issue with the QA its self. perhaps there is more to this story, i dont know, im not working on it.
I will say that what it really sounds to me is that the IP was advanced way too much from someone that was trying to fix a symptom of a stretched belt, who knows.